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  | ID | Category [?] | Severity [?] | Reproducibility | Date Submitted | Last Update | 
|---|---|---|---|---|---|
| 02774 | Graphics | Minor | Always | Dec 26, 2008, 17:43 | Dec 8, 2018, 02:45 | 
| Tester | hap | View Status | Public | Platform | MAME (Self-compiled) | 
| Assigned To | Haze | Resolution | Fixed | OS | |
| Status [?] | Resolved | Driver | |||
| Version | 0.128u7 | Fixed in Version | 0.205 | Build | |
| Fixed in Git Commit | Github Pull Request # | ||||
| Summary | 02774: grdians: Occasional 1-frame glitches | ||||
| Description | Sometimes, a single frame will have glitches in it, probably related to the sprite table. | ||||
| Steps To Reproduce | Visible in attract mode: - at the green alien in the intro - about 30 seconds into the 2nd demo play | ||||
| Additional Information | |||||
| Github Commit | |||||
| Flags | |||||
| Regression Version | |||||
| Affected Sets / Systems | grdians | ||||
| Attached Files |  0029.png (8,913 bytes) Dec 26, 2008, 17:43 | ||||
|  0042.png (22,700 bytes) Dec 26, 2008, 17:44 | |||||
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      Notes
      
    
  3
    |   No.03413 hap Developer Dec 27, 2008, 14:28 | Overclocking the CPU gets rid of the problem, so it might as well be related to interrupt acknowledge, causing a corrupted sprite table instead of just slowdowns. btw, there's a note in seta2.c "VSync: 58.5Hz", while it's emulated at 60Hz in MAME, changing that doesn't fix this problem though. | 
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|   No.15790 MetalGod Senior Tester Nov 16, 2018, 19:29 edited on:  Nov 17, 2018, 18:47 | In case it helps, some pcb evidence. At least the correct alien animation can be seen: | 
|   No.15873 Haze Senior Tester Dec 7, 2018, 17:45 | these glitches are now fixed |